Expansion-joint-installing device



J 1,581,399 A. c. FISCHER Y EXPANSION JOINT INSTALLINQ DEVICE April 201926.

:Filed 0d. 19., 1925 Patented AP UNITED STATES PATENT QF'FI-CEj.)

ALBERT C. FISCHER, OF CHICAGO, ILLINOIS.

ExPANSION-JOINTJKSTALLING nEvIcn.

Application filed October 19, 1925. Serial No. 63,364. I

To all 'iohom it may concern:

Beit known that I, ALBERT C. FISCHER, a

citizen of the United States, residing at Chicago, in the county of,Cook and State of Illinois, have invented a new and useful Improvementin Expansion-Joint-Installing Devices, of which the following is aspecification. a This invention relates to a colnbination of a strip ofexpansion joint and a false strip which completes the sides of the jointtic material made in strip form having anchoring means, so that the samecan be in serted with the expansion joint. The crowning strip may thusbe arranged to be temporary in which case the strip would be removed andanother suitable filler substi tnted or the strip may remainpermanently.

'My invention relates to the combination."

of a removable crowning strip and an ex pansion joint base for thepurposes later described.

- Referring to Figure 1, (1) represents the crowning material, while (0)represents the fastening nails or prongs embedded therein, adapted to beembedded in the top edge of an expansion joint.

Figure 2 illustrates the expansion joint (a) having a crowning strip (6)in place, held in position by the anchoring prongs.

Figure 3 illustrates the expansion-joint (0) in position with thecrowning strip (1)), fastened in place by the prongs (0) having pouredon either .side concrete (0i). The clowning strip (12) in this instancecan readily be removed, and in Figure 4 all that is left in 'placeafter. the removal of the crowning strip (1)) is the expansion joint (0)held in place by the concrete walls .The open space previously occupiedby (b) in Figure 5 is shown to be occupied by a filling composition (e)which may be either poured, laid, or fastened on the base strip (0)between the concrete walls My invention relates particularly to masticexpansion material, and does not contemplate the use of metal. I

I claim v 1. A joint crown installing device, comprising a stripproviding a temporary crown for the expansion oint, said strip havingimpaling means on its underside adapted to be embedded in the materialof the joint for detachably securing the strip to the joint,

2. A joint crown installing device, comprising a woodenstrip having atransverse dimension equal to that of an expansion joint, and havingimpaling prongs driven through the thickness of the same and pro jectingfrom its under side, said prongs being adapted to be embedded in thematerial of the joint for detachably securing the strip to the joint andmaintaining an alignment of the strip and joint to'completely fill' upthe'space to be equipped with the joint.

In testimony whereof I have signed my name to this specification, onthis 8th day of October, A. D., 1925.

ALBERT G. FISCHER.

